Mean, standard deviation and normal distribution HSS.ID.A.4 Grade Practice Test Questions TOC | Lumos Learning

Mean, standard deviation and normal distribution HSS.ID.A.4 Question & Answer Key Resources SBAC Grade 11 Mathematics  Master Course 

SBAC Grade 11 Mathematics  Master Course  Mean, standard deviation and normal distribution

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Suppose a manufacturing company is making hydraulic cylinder shafts. The contract requires the diameter of the shaft to be \(2.5\pm 0.02\; inches.\) A sample of cylinders was checked and the weights were normally distributed. The mean diameter of the sample was 2.5 inches with a standard deviation of 0.01 inches. What percent of the cylinders in the sample were within the specification?